HMRC Regulatory Update: From May 2026, conveyancers filing SDLT returns must register as tax advisers.
We Started Where You Are Now
Tax advisors spending hours untangling SDLT errors that conveyancers had already submitted. Seeing the same reliefs missed, the same errors repeated—and the impact on practices, PI exposure, and client outcomes.
We didn't set out to build software. We set out to solve a problem we saw every day.
SDLT Check exists because the people who understand SDLT best decided to help the people who need that expertise most.
500+
UK Conveyancers Protected
50,000+
Calculations Completed
Zero
HMRC Disputes
£5M
Indemnity Coverage
The Problem We Kept Seeing
As tax specialists with decades of experience in property taxation, we spent years reviewing SDLT calculations after they'd been submitted. The pattern was always the same.
A conveyancer had done their best with a complex transaction. Maybe a property with an annexe. Maybe a mixed-use building. Maybe a non-resident buyer with UK property interests. They'd used the HMRC calculator, double-checked the figures, submitted the return.
Then, months later, the client's accountant would call. Or HMRC would query. Or a reclaim opportunity would emerge that had been missed.
And we'd see the same thing every time:
The conveyancer wasn't incompetent. They were under time pressure, working with inadequate tools, navigating 49 different reliefs that change constantly. The HMRC calculator—designed for simple transactions—couldn't handle the edge cases. The conveyancer couldn't know what they didn't know.
The client was £8,000, £15,000, sometimes £30,000 worse off. The conveyancer was facing a PI claim, premium increases, and the quiet professional shame of an error on their record.
We kept thinking: this doesn't have to happen.
Why Tax Advisors Built This
Here's what we realised:
Conveyancers aren't SDLT specialists. They're property lawyers handling complex legal transactions under pressure. SDLT is one element of a hundred things they're managing on every file.
Tax advisors are SDLT specialists. We spend our entire professional lives understanding the nuances—the reliefs, the edge cases, the tribunal decisions, the HMRC guidance that changes quarterly.
The knowledge gap isn't anyone's fault. But the consequences fall on conveyancers and their practices—PI exposure, reputation, and client relationships.
So we asked ourselves: what if we could put our 50+ years of combined SDLT expertise into a tool that conveyancers could use on every transaction? What if we could eliminate the knowledge gap—and stand behind our methodology with real liability?
That's SDLT Check.
What Makes Us Different
We're Tax Specialists First
SDLT Check wasn't built by software developers who consulted some solicitors. It was built by tax specialists who've spent decades in property taxation, working alongside software engineers to encode our methodology.
When you use SDLT Check, you're getting our expertise—not an algorithm's best guess.
We Put Our Money Where Our Methodology Is
Anyone can claim accuracy. We back ours with £5,000,000 professional indemnity on every calculation. If SDLT Check produces an incorrect figure—and your firm incurs costs as a direct result—we cover those costs up to our policy limits.
We can offer this because we've validated our methodology against 50,000+ historical SDLT returns.
We Understand Your World
We've worked with conveyancing firms for years. We know the CQS requirements. We understand the PI pressure. We've seen what happens when errors surface 18 months after completion.
SDLT Check isn't just technically accurate. It's designed for how you actually work.
Our Team
Meet the tax specialists and SDLT experts protecting UK conveyancers
Lee Bould
Chief Executive Officer
Shane Mockler
Chief Financial Officer
George Bould
SDLT Check Desk Lead
Ben Gatford
Senior SDLT Consultant
Charlotte Smith
SDLT Consultant
Lois Paling
Account Manager
Greg Dickson
Marketing Director
Founded by Practitioners
SDLT Check was founded by tax specialists who specialised in property taxation and SDLT advisory work. After years of reviewing conveyancers' calculations after problems emerged, we built the tool we wished they'd had access to from the start.
Our founding team brings:
- ✓50+ years combined SDLT experience
- ✓Professional tax qualifications and expertise
- ✓Specialisation in property taxation and stamp duties
- ✓Direct experience reviewing thousands of SDLT calculations
- ✓Understanding of both tax technicality and conveyancing practice
Our Advisory Team
Every calculation logic in SDLT Check is peer-reviewed by independent SDLT specialists before release. When Finance Acts change or tribunal decisions shift interpretation, our advisory team analyses the implications and updates our methodology.
We don't guess. We consult, validate, and verify.
Our Support Team
When you contact SDLT Check with a question, you reach people who understand SDLT—not generic software support. Our team includes qualified tax professionals who can discuss the technical aspects of your calculation.
Expert support means expert answers.
Our Commitment
To Conveyancers
We exist to support your practice with accuracy, indemnity, and compliance. Every feature we build, every update we make, and every support interaction is guided by one question: does this help conveyancers work with confidence?
To Accuracy
We will never release a calculation methodology we're not confident enough to indemnify. Our £5M coverage isn't marketing—it's accountability. When we stand behind a figure, we mean it.
To Transparency
We show our working on every calculation. No black boxes. No 'trust us' figures. You can see exactly how we reached every number, defend it to clients and accountants, and verify it yourself if you choose.
To Accessibility
SDLT expertise shouldn't be reserved for large firms with tax departments. Our pay-as-you-go pricing ensures solo practitioners and small firms get the same protection as enterprise practices—without enterprise budgets.
The Vision
What We're Building
A world where conveyancers have the tools and support to get SDLT right—without carrying the risk alone.
Where complex transactions are handled with clear methodology and indemnity.
Where CQS audits are supported by consistent, audit-ready documentation.
Where the knowledge gap between tax specialists and conveyancing practitioners is bridged by expert-backed tools.
SDLT is complex. Getting it right doesn't have to be.
Join 150+ UK Conveyancing Firms
Solo practitioners to enterprise firms. High street practices to specialist conveyancers. All protected by the same expert methodology and £5M indemnity.
"Great Product - Easy to use. Our firm has had a brilliant experience using SDLT check, it is straightforward, quick, well priced and reliable. Works great for professionals and individuals. No complaints and would highly recommend this product!"
— Ifrah, Law Firm (Trustpilot)
Get in Touch
General Enquiries
Office Address
The Barns, Barston Gate Farm
Barston Lane, Barston
B92 0JN
Company Information
SDLT CHECK (MIDLANDS) LTD
Company number: 15263616
Professional Indemnity Insurance
Insurer: QBE
Coverage: £5,000,000 per claim
Policy available on request for enterprise clients
Built by tax advisors. For conveyancers. Because the people who understand SDLT best should be helping the people who need that expertise most.